ROME — Europe is seeing further signs of hope in the coronavirus outbreak as Italy’s daily death toll was at its lowest in more than two weeks and health officials noted with caution Sunday that the infection curve was finally descending. In Spain, new deaths dropped for the third straight day, But the optimism was tempered by Britain’s jump in coronavirus deaths that outpaced the daily toll in Italy. Angelo Borrelli, the head of Italy’s Civil Protection agency on Sunday, said there were 525 deaths in the 24-hour period since Saturday evening.